Magnitude 7.7 Earthquake Near Tongo Generates TSUNAMI ! ! ~ Nov. 12, 2022

___________________________________________________________________________________________________

A very strong magnitude 7.7 earthquake has taken place in the south Pacific ocean, near the island of Tonga.   The quake, at a shallow depth of 21 miles HAS GENERATED a small Tsunami, which is impacting land areas near the quake zone.

From the Pacific Tsunami Warning Center:

 ZCZC
WEZS40 PHEB 111157
TSUPPG

ASZ001>003-111357-
/O.NEW.PHEB.TS.Y.0003.221111T1157Z-000000T0000Z/

BULLETIN
TSUNAMI MESSAGE NUMBER 3
NWS PACIFIC TSUNAMI WARNING CENTER HONOLULU HI
1257 AM SST FRI NOV 11 2022

...THE TSUNAMI ADVISORY CONTINUES IN EFFECT FOR AMERICAN SAMOA...

IN THIS MESSAGE ARE REVISED ALERTS... AND EARTHQUAKE PARAMETERS.


AUDIENCE
--------
EMERGENCY MANAGERS... MEDIA... GENERAL PUBLIC


EVALUATION
----------

  * AN EARTHQUAKE WITH A PRELIMINARY MAGNITUDE OF 7.3 OCCURRED IN
    THE TONGA ISLANDS REGION AT 1149 PM SST ON THURSDAY NOVEMBER
    10 2022.

  * SOME AREAS MAY HAVE EXPERIENCED STRONG SHAKING.

  * TSUNAMI WAVES FROM THIS EARTHQUAKE HAVE BEEN OBSERVED AND THE
    TSUNAMI THREAT CONTINUES.

  * A TSUNAMI WAS GENERATED BY THIS EARTHQUAKE. BASED ON ALL
    AVAILABLE DATA... THERE IS A THREAT TO AMERICAN SAMOA OF SEA
    LEVEL FLUCTUATIONS AND STRONG OCEAN CURRENTS THAT COULD BE A
    HAZARD ALONG BEACHES... IN HARBORS... AND IN COASTAL WATERS.

  * THE EARLIEST ESTIMATED TIME THAT HAZARDOUS SEA LEVEL
    FLUCTUATIONS AND STRONG OCEAN CURRENTS MAY BEGIN IN AMERICAN
    SAMOA IS

                 1230 AM SST ON FRIDAY NOVEMBER 11 2022


RECOMMENDED ACTIONS
-------------------

  * PERSONS IN OR NEAR THE OCEAN ALONG THE COASTS OF ALL OF
    AMERICAN SAMOA SHOULD MOVE IMMEDIATELY OUT OF THE WATER AND
    AWAY FROM BEACHES AND HARBORS.

  * DO NOT RETURN TO EVACUATED AREAS UNTIL THE ALL CLEAR IS GIVEN
    BY LOCAL AUTHORITIES.

  * PERSONS IN THE OCEAN SHOULD GET OUT OF THE WATER. PERSONS
    NEAR THE OCEAN SHOULD MOVE AWAY FROM BEACHES AND HARBORS.

  * FOLLOW ANY INSTRUCTIONS FROM GOVERNMENT AGENCIES.


ESTIMATED TIMES OF ARRIVAL
--------------------------

  * ESTIMATED TIMES OF ARRIVAL -ETA- OF THE INITIAL TSUNAMI WAVE
    ARE GIVEN BELOW. ACTUAL ARRIVAL TIMES MAY DIFFER AND THE
    INITIAL WAVE MAY NOT BE THE LARGEST. A TSUNAMI IS A SERIES
    OF WAVES AND THE TIME BETWEEN WAVES CAN BE FIVE MINUTES TO
    ONE HOUR.

    LOCATION            REGION    COORDINATES      ETA(SST)
    ----------------------------------------------------------
    TAFUNA              TUTUILA   14.3S 170.7W   1230 AM 11/11
    LEONE               TUTUILA   14.3S 170.8W   1231 AM 11/11
    FAGAMALO            TUTUILA   14.3S 170.8W   1231 AM 11/11
    AMANAVE             TUTUILA   14.3S 170.8W   1231 AM 11/11
    FAGASA              TUTUILA   14.3S 170.7W   1233 AM 11/11
    VATIA               TUTUILA   14.2S 170.7W   1234 AM 11/11
    PAGO PAGO           TUTUILA   14.3S 170.7W   1234 AM 11/11
    AUMI                TUTUILA   14.3S 170.7W   1234 AM 11/11
    AUNUU ISLAND        AUNUU     14.3S 170.6W   1235 AM 11/11
    OFU ISLAND          MANUA     14.2S 169.7W   1237 AM 11/11
    TAU ISLAND          MANUA     14.3S 169.5W   1237 AM 11/11
    TULA                TUTUILA   14.3S 170.6W   1237 AM 11/11
    OLESEGA ISLAND      MANUA     14.2S 169.6W   1237 AM 11/11
    MASEFAU             TUTUILA   14.3S 170.6W   1238 AM 11/11
    PAGAI               TUTUILA   14.3S 170.6W   1238 AM 11/11
    SWAINS ISLAND       SWAINS    11.1S 171.1W   1258 AM 11/11


TSUNAMI OBSERVATIONS
--------------------

  * THE FOLLOWING ARE TSUNAMI WAVE OBSERVATIONS FROM COASTAL
    AND/OR DEEP-OCEAN SEA LEVEL GAUGES AT THE INDICATED
    LOCATIONS. THE MAXIMUM TSUNAMI HEIGHT IS MEASURED WITH
    RESPECT TO THE TIDE LEVEL.

                            GAUGE      TIME OF   MAXIMUM     WAVE
                         COORDINATES   MEASURE   TSUNAMI   PERIOD
    GAUGE LOCATION        LAT   LON     (SST)     HEIGHT    (MIN)
    -------------------------------------------------------------
    PAGO PAGO AS         14.3S 170.7W  1240 AM   0.3FT/ 0.1M  08


POTENTIAL IMPACTS
-----------------

  * SEA LEVEL FLUCTUATIONS THAT ARE GENERALLY NO MORE THAN 3 FEET
    ABOVE AND BELOW THE TIDE LEVEL.

  * MINOR FLOODING OF BEACH AND HARBOR AREAS.

  * STRONG AND UNUSUAL OCEAN CURRENTS IN HARBORS... BAYS... AND
    OTHER NEAR SHORE WATERS.

  * THE HAZARD BEGAN AROUND 1230 AM SST ON FRIDAY NOVEMBER 11 AND
    IT CAN PERSIST FOR MANY HOURS OR LONGER.


PRELIMINARY EARTHQUAKE PARAMETERS - UPDATED
-------------------------------------------

  * MAGNITUDE      7.3
  * ORIGIN TIME    1149 PM SST NOV 10 2022
  * COORDINATES    19.3 SOUTH  172.1 WEST
  * DEPTH          36 MILES
  * LOCATION       TONGA REGION


NEXT UPDATE AND ADDITIONAL INFORMATION
--------------------------------------

  * THE NEXT MESSAGE WILL BE ISSUED IN THIRTY MINUTES... OR
    SOONER IF THE SITUATION WARRANTS.

  * FURTHER INFORMATION ABOUT THIS EVENT MAY BE FOUND ON THE
    INTERNET AT WWW.TSUNAMI.GOV.

  * AUTHORITATIVE INFORMATION ABOUT THE EARTHQUAKE FROM THE U.S.
    GEOLOGICAL SURVEY CAN BE FOUND ON THE INTERNET AT
    EARTHQUAKE.USGS.GOV.

$$

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